Fri Jun 28 16:53:01 1996 David Mosberger-Tang <davidm@azstarnet.com>
[kopensolaris-gnu/glibc.git] / sysdeps / unix / alpha / sysdep.h
1 /* Copyright (C) 1992, 1995, 1996 Free Software Foundation, Inc.
2    Contributed by Brendan Kehoe (brendan@zen.org).
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12 Library General Public License for more details.
13
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB.  If
16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
17 Cambridge, MA 02139, USA.  */
18
19 #include <sysdeps/unix/sysdep.h>
20
21 #ifdef ASSEMBLER
22
23 #ifdef __linux__
24 # include <alpha/regdef.h>
25 #else
26 # include <regdef.h>
27 #endif
28
29 #ifdef __STDC__
30 #define LEAF(name, framesize)                   \
31   .globl name;                                  \
32   .align 3;                                     \
33   .ent name, 0;                                 \
34   name##:                                       \
35   .frame sp, framesize, ra
36 #else
37 #define LEAF(name, framesize)                   \
38   .globl name;                                  \
39   .align 3;                                     \
40   .ent name, 0;                                 \
41   name/**/:                                     \
42   .frame sp, framesize, ra
43 #endif
44
45 #ifdef __STDC__
46 #define ENTRY(name)                             \
47   .globl name;                                  \
48   .align 3;                                     \
49   .ent name, 0;                                 \
50   name##:                                       \
51   .frame sp, 0, ra
52 #else
53 #define ENTRY(name)                             \
54   .globl name;                                  \
55   .align 3;                                     \
56   .ent name, 0;                                 \
57   name/**/:                                     \
58   .frame sp, 0, ra
59 #endif
60
61 /* Mark the end of function SYM.  */
62 #undef END
63 #define END(sym)        .end sym
64
65 /* Note that PSEUDO/PSEUDO_END use label number 1996---do not use a
66    label of that number between those two macros!  */
67  
68 #ifdef __STDC__
69 #define PSEUDO(name, syscall_name, args)        \
70     .globl name;                                \
71     .align 3;                                   \
72     .ent name,0;                                \
73                                                 \
74 name##:                                         \
75     .frame sp, 0, ra                            \
76     .prologue 1; /* yes, we do use gp */        \
77     ldiq        v0, SYS_ify(syscall_name);      \
78     .set noat;                                  \
79     call_pal    PAL_callsys;                    \
80     .set at;                                    \
81     bne         a3, 1996f;                      \
82 3:
83 #else
84 #define PSEUDO(name, syscall_name, args)        \
85     .globl name;                                \
86     .align 3;                                   \
87     .ent name,0;                                \
88                                                 \
89 name/**/:                                       \
90     .frame sp, 0, ra                            \
91     .prologue 1; /* yes, we do use gp */        \
92     ldiq        v0, SYS_ify(syscall_name);      \
93     .set noat;                                  \
94     call_pal    PAL_callsys;                    \
95     .set at;                                    \
96     bne         a3, 1996f;                      \
97 3:
98 #endif
99
100 #undef PSEUDO_END
101
102 #define PSEUDO_END(sym)                         \
103 1996:                                           \
104     br          gp, 2f;                         \
105 2:  ldgp        gp, 0(gp);                      \
106     jmp         zero, __syscall_error;          \
107     END(sym)
108
109 #define r0      v0
110 #define r1      a4
111
112 #define MOVE(x,y)       mov x,y
113
114 #endif